发明名称 |
Read-only optical disk containing a reflective layer comprising an Al alloy containing Ta |
摘要 |
Disclosed herein is a read-only optical disk comprising an annulus transparent substrate of a synthetic resin having information pits thereon, a reflective layer comprising an Al alloy containing Ta and a protective layer provided thereover. The read-only optical disk according to the present invention is excellent in the corrosion resistance and has a high reliability.
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申请公布号 |
US5276673(A) |
申请公布日期 |
1994.01.04 |
申请号 |
US19900524078 |
申请日期 |
1990.05.16 |
申请人 |
MITSUBISHI KASEI CORPORATION |
发明人 |
KOBAYASHI, YOSHIMITSU;KISAKA, YOSHIYUKI;HASHIMOTO, TAKASHI;KAWANO, TOSHIFUMI;WAKABAYASHI, MITSUGU |
分类号 |
G11B7/24;G11B7/253;G11B7/254;G11B7/258;(IPC1-7):G11B7/24;G11B7/00 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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